Pinless diaper



y 14, 1963 R. SCHWARTZ 3,089,494

PINLESS DIAPER Filed Jan. 12, 1962 FIGURE 2 FIGURE 3 FIGURE 4 UnitedStates Patent 3,089,494 PHNLESS DIAPER Robert Schwartz, Railway, N .J(1271 Westfield Ave, Union, NJ.) Filed Jan. 12, 1962, Ser. No. 165,757 2Claims. (Cl. 128-284) This invention relates to improvements in pinlessdiapers. The diapers, because of their specific design, elimimate theuse of buttons, pins, and other fasteners and can be applied to the babywith little disturbance and can also be simply and quickly removed.

Self-sealing adhesives have been incorporated into the diaper designs in.an attempt to improve their characteristics but the products have allbeen found wanting in one characteristic or another.

This invention provides a specific design incorporating self-sealingadhesives in the diaper structure in a manner adapted to overcome theprior art deficiencies.

The specific design of this invention involves a pinless diapercomprising a sheet of absorbent material. From the crotch portion thereis an upwardly extending portion which is formed with oppositelyextending wings. These wings, which can be of varying length dependingon size desired, contain a self-sealing adhesive on both surfaces. Thisadapts the wings to be pressed into sealed engagement when one Wing isfolded over the other. A downwardly extending portion of the sheet is sodesigned as to be adapted to be folded upwardly (against the abdomen fora boy or in case of a girl in the back) and then downwardly over thewings in sealed engagement. This latter downwardly extending portioncontains self-sealing adhesive only on the surface away from the abdomen(or back) in the unfolded position so that, when (folded over the wings,it is adapted to be pressed into sealed engagement therewith thusholding the diaper in place.

In the accompanying drawing are shown illustrative embodiments of thisinvention:

FIG. 1 is a top plan view.

FIGS. 2, 3, and 4 are prospective views of the diaper in various stagesof being folded into place.

Referring now in detail to the drawing, 10 designates a diaper embodyingthe invention containing a crotch portion 1. The baby is placed on thediaper with his legs on opposite sides of portion 1. Extending upwardlyfrom 1 is a portion 2 containing oppositely extending wings 6 and 7.These contain self-sealing adhesive 8 and 9 on both surfaces. Extendingdownwardly from 1 is portion 3. This contains adhesive at the lowerportion thereof 4 only on the undersurface away from the abdomen.

In fastening the diaper to the boy baby, the downwardly extendingportion 3 is folded upwardly against the abdomen exposing 5 as shown inFIG. 2. The wings are then placed into sealed engagement by being foldedover the abdomen with the use of only mild pressure and as illus-3,089,494 Patented May 14, 1963 trated in FIG. 3. Portion 4, with thesealed adhesive portion 5 exposed, is then folded over the wings andalso pressed into sealed engagement therewith fastening the diaper asshown in FIG. 4.

lThB self-sealing adhesive can be applied directly to the surfacescalled for but preferably are fabric-like selfsealing adhesive pressuretape backing on the diaper sheet. These self-sealing pressure tapebackings are readily available.

The structure of the diaper of this invention lends itself to variousamplifications. Thus, elastic materials can be incorporated around theedges, if desired, for more secure fit. Reinforcing absorbent materialscan also be incorporated. If desired, waterproof materials can be addedonto one or both surfaces as long as the self-sealing mechanism ispreserved. A variety of materials of construction can be used in thediaper sheet including, if desired, readily disposable materials orwashable ones.

The diaper can also be readily removed by reversing the operationsdiscussed above.

The advantages of this invention are apparent. A diaper of improveddesign is made available which avoids the cumbersome problems inherentin the use of pins and lends itself for use by even the inexperienced.

It is to be understood that this invention is not limited to thespecific examples which have been offered merely as illustrations andthat modifications may be made without departing from the spirit of theinvention.

What is claimed is:

1. A pinless diaper comprising a sheet of absorbent material having acrotch portion; a portion of the diaper extending upwardly therefrom andformed with oppositely extending wings, said wings containingself-sealing adhesive on both surfaces so as to be adapted to be pressedinto sealed engagement when folded over other self-sealing adhesive onthe diaper; and a portion extending downwardly from the crotch portionadapted to be folded upwardly against the body, and downwardly over thewings in sealed engagement, said portion containing self-sealingadhesive only on the surface away from the body thus adapting it to befolded over the wings and to be pressed into sealed engagement with thewings to hold the diaper in place.

2. The diaper of claim 1 in which the adhesive is on pressure tapebackings.

References Cited in the file of this patent UNITED STATES PATENTS2,660,172 Tittle Nov. 24, 1953 2,714,889 Chambers Aug. 9, 1955 2,717,437De Mestral Sept. 13, 1955 2,739,594 Baten Mar. 27, 1956 2,832,345 WebbApr. 29, 1958 2,834,347 Connally May 13, 1958

1. A PINLESS DIAPER COMPRISING A SHEET OF ABSORBENT MATERIAL HAVING ACROTCH PORTION; A PORTION OF THE DIAPER EXTENDING UPWARDLY THEREFROM ANDFORMED WITH OPPOSITELY EXTENDING WINGS, SAID WINGS CONTAININGSELF-SEALING ADHESIVE ON BOTH SURFACES SO AS TO BE ADAPTED TO BE PRESSEDINTO SEALED ENGAGEMENT WHEN FOLDED OVER OTHER SELF-SEALING ADHESIVE ONTHE DIAPER; AND A PORTION EXTENDING DOWNWARDLY FROM THE CROTCH PORTIONADAPTED TO BE FOLDED UPWARDLY AGAINST THE BODY, AND DOWNWARDLY OVER THEWINGS IN SEALED ENGAGEMENT, SAID PORTION CONTAINING SELF-SEALINGADHESIVE ONLY ON THE SURFACE AWAY FROM THE BODY THUS ADAPTING IT TO BEFOLDED OVER THE WINGS AND TO BE PRESSED INTO SEALED ENGAGEMENT WITH THEWINGS TO HOLD THE DIAPER IN PLACE.